OpenGL: C and D same code - different results

[Lionello Lunesu]

Bill Baxter wrote:
> Lionello Lunesu wrote:
>> No tips, since I'm pretty new at this myself, but I've just finished 
>> translating nVidia's glsl_pseudo_instancing* sample from C++ to D, and 
>> believe it or not, D's version is actually faster (albeit by a mere 1%).
>>
>> That really surprised me, since the MSVC 2005 compiler is really good 
>> at FPU stuff, plus that whole-program-optimization thing they have.
>>
>> So I'm confident there must be something else going on in your case. A 
>> literal translation to D should not cause big differences. Well, no 
>> negative differences anyway ;)
>>
>> By the way, the C++ version had many uninitialized variables. Thanks, 
>> Walter, for making floats default to NaN. It's really easy to track 
>> the source of a uninited variable this way!
>>
>> L.
>>
>> (*If anybody wants that app, just say it)
> 
> 
> I'd be interested in seeing the code.
> 
> --bb

Thought I'd check the license.txt:

"... Developer agrees not distribute the Materials or any derivative 
works created therewith without the express written permission of an 
authorized NVIDIA officer or employee. ..."

:(

I've written them an e-mail...

L.